Electronic components and terminal equipment

Abstract

The present invention discloses an electronic component and a terminal device, wherein the electronic component comprises a dielectric layer and an electrode layer, wherein the electrode layer is arranged on the dielectric layer, wherein the electrode layer comprises a main body, a first end and a second end, wherein the first end and the second end are respectively connected to two ends of the main body to enclose together to form an inductance region, wherein the first end and the second end are both extended along a first direction and arranged facing each other and spaced in a second direction, wherein the width of the main body in the line width direction is a first width, wherein at least a portion of the first end in the line width direction is smaller than the first width, and / or, at least a portion of the second end in the line width direction is smaller than the first width, so that the distance between the first end and the second end in the second direction is increased, wherein the first direction is perpendicular to the second direction. By adopting the scheme of the present invention, the distance between the first end and the second end can be increased, and the situation that the first end and the second end are connected to each other and short circuit occurs can be avoided.

Description

Technical Field

[0001] The present invention relates to the field of inductance technology, and in particular to an electronic component and a terminal device. Background Art

[0002] In the inductor industry, multilayer chip inductors usually include multiple dielectric layers and multiple electrode layers. The effective coil area enclosed by the electrode layers will affect the size of the inductance. In order to obtain a higher inductance in a limited number of dielectric layers and electrode layers, the distance between the two ends of the electrode layer is usually made closer to increase the effective coil area. However, the electrode layer is usually made of silver. Under high temperature load conditions, if the distance between the two ends of the electrode layer is set closer, silver migration will occur at the two ends of the electrode layer, resulting in mutual conduction between the two ends and a short circuit, which affects the normal operation of the multilayer chip inductor. Summary of the invention

[0003] The embodiment of the present invention discloses an electronic component and a terminal device, which can increase the distance between a first end and a second end, and avoid the situation where the first end and the second end are connected to each other and short-circuited.

[0004] In order to achieve the above object, in a first aspect, the present invention discloses an electronic component, comprising:

[0005] a dielectric layer; and,

[0006] An electrode layer, the electrode layer is arranged on the dielectric layer, the electrode layer comprises a main body, a first end and a second end, the first end and the second end are respectively connected to two ends of the main body to jointly enclose an inductor region, the first end and the second end are both extended along a first direction, and are arranged facing each other and spaced apart in a second direction;

[0007] The width of the main body in the line width direction is a first width, the width of at least part of the first end in the line width direction is smaller than the first width, and / or the width of at least part of the second end in the line width direction is smaller than the first width, so that the distance between the first end and the second end in the second direction is increased;

[0008] The first direction is perpendicular to the second direction.

[0009] As an optional embodiment, in an embodiment of the first aspect of the present invention, when the width of at least part of the first end portion is smaller than the first width, the first end portion has a first portion, the first portion has a first surface spaced apart from the second end portion, the first surface is a plane, and the first surface is arranged away from the second end portion in the second direction so that the width of the first portion in its line width direction is smaller than the first width.

[0010] As an optional implementation, in an embodiment of the first aspect of the present invention, in the first direction, the length of the second end is smaller than the length of the first end, and the length of the first part is adapted to the length of the second end.

[0011] As an optional embodiment, in an embodiment of the first aspect of the present invention, the first end also includes a second part, which is connected between the first part and the main body, and in the first direction, at least a portion of the second part on one side close to the second end is configured as a transition surface, and along the direction from the second part to the first part, the distance between the transition surface and the second end in the second direction gradually increases.

[0012] As an optional implementation, in an embodiment of the first aspect of the present invention, the first width is D1, and in the first direction, the length of the portion of the second portion having the transition surface is L1, satisfying the relationship: 0.5D1≤L1≤1.5D1, and / or,

[0013] In the first direction, a length of a portion of the first end portion that is opposite to the second end portion is L2, satisfying the relationship: 1.8D1≤L2≤2.2D1.

[0014] As an optional implementation, in an embodiment of the first aspect of the present invention, the first width is D1, the width of the first end is D2, satisfying the relationship: 0.6D1≤D2≤0.9D1, and / or the width of the second end is D3, satisfying the relationship: 0.6D1≤D3≤0.9D1.

[0015] As an optional implementation, in an embodiment of the first aspect of the present invention, the first width is D1, and in the second direction, the distance between the first end and the second end is H1, satisfying the relationship: 0.3D1≤H1≤0.7D1.

[0016] As an optional implementation, in an embodiment of the first aspect of the present invention, the first width is D1, the width of the first end is D2, the width of the second end is D3, and in the second direction, the distance between the first end and the second end is H1, satisfying the relationship: 1.5D1≤D2+D3+H1≤2.5D1.

[0017] As an optional implementation, in an embodiment of the first aspect of the present invention, along the second direction, the second end portion has a second surface and a third surface, the second surface is a surface close to the first end portion, and the second surface is a plane;

[0018] The third surface is disposed close to the second surface along the second direction, so that a width of the second end portion is smaller than the first width.

[0019] In a second aspect, the present invention further discloses a terminal device, which includes the electronic component as described in the first aspect.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The electronic component and terminal device provided by the embodiment of the present invention can increase the distance between the first end and the second end by making the width of the first end of the electrode layer in the line width direction and / or the width of the second end of the electrode layer in the line width direction smaller than the first width, so that there is a sufficient safety distance between the first end and the second end, and in a high temperature load environment, when silver migration occurs between the first end and the second end, it can avoid the situation where the first end and the second end are connected to each other and short-circuited. At the same time, the scheme of the present application does not need to adjust the line width of the main body of the electrode layer as a whole, that is, the line width of the main body does not change, but makes the width of the first end of the electrode layer in the line width direction and / or the width of the second end of the electrode layer in the line width direction smaller than the first width. Therefore, this method will not reduce the effective coil area of ​​the electronic component, and the impact on the overall DC resistance of the electrode layer is relatively small, thereby avoiding the serious heating of the electrode layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a first structural schematic diagram of an electronic component of the related art;

[0024] Figure 2 It is a second structural schematic diagram of an electronic component of the related art;

[0025] Figure 3 It is a third structural schematic diagram of an electronic component of the related art;

[0026] Figure 4 It is a fourth structural schematic diagram of an electronic component of the related art;

[0027] Figure 5 It is a schematic diagram of the first structure of the electronic component disclosed in the first aspect of the embodiment of the present application;

[0028] Figure 6 is a second structural schematic diagram of the electronic component disclosed in the first aspect of the embodiment of the present application;

[0029] Figure 7 is a third structural schematic diagram of the electronic component disclosed in the first aspect of the embodiment of the present application;

[0030] Figure 8 is a fourth structural schematic diagram of the electronic component disclosed in the first aspect of the embodiment of the present application;

[0031] Fig. 9 is a schematic diagram of the three-dimensional structure of the electronic component disclosed in the first aspect of the embodiment of the present application;

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the terminal device disclosed in the second aspect of the embodiment of the present application.

[0033] Icons: 1. electronic component; 10. dielectric layer; 11. electrode layer; 110. main body; 111. first end; 111a. first part; 1110. first surface; 111b. second part; 1111. transition surface; 112. second end; 1120. second surface; 1121. third surface; 12. external electrode layer; 2. terminal device; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the inductor industry, multilayer chip inductors usually include multiple dielectric layers and multiple electrode layers. Each dielectric layer is provided with an electrode layer, and two adjacent electrode layers are isolated by the dielectric layer. Due to the limited size of the dielectric layer, the effective coil area enclosed by the electrode layer on the dielectric layer will affect the size of the inductance. In order to obtain a higher inductance in a limited number of dielectric layers and electrode layers, the distance between the two ends of the electrode layer is usually made closer, thereby expanding the effective coil area enclosed by the electrode layer. However, the material of the electrode layer is usually silver. In a high temperature load environment, such as Figure 1 As shown, if the distance between the first end 111 and the second end 112 of the electrode layer 11 is set to be relatively close, silver migration may occur at the two ends of the electrode layer 11, resulting in mutual conduction between the two ends and a short circuit, thus affecting the normal operation of the multilayer chip inductor.

[0036] In order to facilitate the comparison with the prior art electronic component 1 (i.e. Figure 1 The electronic components shown in 1) are compared Figures 2 to 8 The dashed lines indicate Figure 1 Electronic components 1.

[0037] In order to solve the problem that the two ends may be connected to each other and cause a short circuit, the inventor has made the following attempts: Figure 2 As shown, the length of the main body 110 of the electrode layer 11 connected to the first end 111 is extended so that the first end 111 is away from the second end 112, thereby increasing the distance between the first end 111 and the second end 112. Although this method can increase the distance between the first end 111 and the second end 112, it will increase the overall size of the electronic component 1, which is not conducive to the miniaturization design of the electronic component 1, and further not conducive to the application of the electronic component 1 in miniaturized terminal equipment.

[0038] In order to take into account the miniaturization design of the electronic component 1, the inventor has made other attempts, such as Figure 3 As shown, the inventors have tried to reduce the overall line width of the electrode layer 11, that is, to increase the distance between the first end 111 and the second end 112 without increasing the overall size of the electronic component 1. However, the narrowing of the overall line width of the electrode layer 11 will result in an excessively large overall DC resistance of the electrode layer 11, causing serious heating of the electrode layer 11, seriously affecting the service life of the electrode layer 11, and also being detrimental to its application in terminal devices.

[0039] Based on the above, the inventors have thought of other methods, such as Figure 4As shown, the inventor tried to shorten the length of the main body 110 of the electrode layer 11 connected to the second end 112, so that the second end 112 is away from the first end 111, thereby increasing the distance between the first end 111 and the second end 112. However, the inventor found through testing that although this method does not increase the overall size of the electronic component 1, nor does it increase the DC resistance of the electrode layer 11, that is, this method can take into account miniaturization and heat dissipation considerations, under this method, the effective coil area of ​​the electrode layer 11 is reduced, which seriously affects the inductance of the electronic component 1.

[0040] That is, in order to make the electronic component 1 have a larger inductance in the related art, the inventors have tried many times to solve the problem of short circuit at the two ends of the electrode layer 11. However, no matter which method is tried, it is ultimately difficult to take into account the requirements of miniaturization, heat dissipation, and inductance of the electronic component 1.

[0041] In view of this, the present application increases the distance between the first end 111 and the second end 112 in the second direction by making the width of at least a portion of the first end 111 smaller than the first width, and / or the width of at least a portion of the second end 112 smaller than the first width. The present application aims to take into account the DC resistance of the electrode layer 11 and the effective coil area on the basis of the miniaturized design of the electronic component 1.

[0042] The technical solution of the present invention will be further described below in conjunction with embodiments and drawings.

[0043] Please also read Figures 5 to 7 According to a first aspect of an embodiment of the present invention, an electronic component 1 is provided. The electronic component 1 includes a dielectric layer 10 and an electrode layer 11. The electrode layer 11 is disposed on the dielectric layer 10. The electrode layer 11 includes a main body 110, a first end 111 and a second end 112. The first end 111 and the second end 112 are respectively connected to two ends of the main body 110 to enclose an inductor region. The first end 111 and the second end 112 are both extended along a first direction X, and are disposed opposite to each other and spaced apart in a second direction Y. The width of the main body 110 in the line width direction is the first width, and at least a portion of the first end 111 in the line width direction is smaller than the first width, and / or at least a portion of the second end 112 in the line width direction is smaller than the first width, so that the distance between the first end 111 and the second end 112 in the second direction Y increases, wherein the first direction X is perpendicular to the second direction Y.

[0044] It can be understood that the first direction X can be a direction perpendicular to the line width direction of the first end 111 and the second end 112, and the second direction Y can be a line width direction of the first end 111 and the second end 112. The above directions are only examples for ease of understanding and do not limit the scope of this application.

[0045] The electronic component 1 provided in the first aspect of the embodiment of the present invention can increase the distance between the first end 111 and the second end 112 by making the width of the first end 111 of the electrode layer 11 in the line width direction and / or the width of the second end 112 of the electrode layer 11 in the line width direction smaller than the first width, so that there is a sufficient safety distance between the first end 111 and the second end 112. In a high temperature load environment, when silver migration occurs between the first end 111 and the second end 112, it is possible to avoid the first end 111 and the second end 112 being electrically connected to each other and causing a short circuit. At the same time, the solution of the present application does not need to adjust the line width of the main body 110 of the electrode layer 11 as a whole, that is, the line width of the main body 110 does not change, but the width of the first end 111 of the electrode layer 11 in its line width direction and / or the width of the second end 112 of the electrode layer 11 in its line width direction is made smaller than the width of the main body 110. Therefore, this method will not reduce the effective coil area of ​​the electronic component 1, and since this method is to adjust the width of the local position of the electrode layer 11, the impact on the overall DC resistance of the electrode layer 11 is relatively small, thereby avoiding severe heating of the electrode layer 11.

[0046] That is, the electronic component 1 of the present application strikes a balance between the overall DC resistance of the electrode layer 11 and the effective coil area on the basis of taking into account the miniaturized design of the electronic component 1, so that the electronic component 1 can achieve a miniaturized design while also having a sufficient effective coil area and good heat dissipation effect, thereby enabling the electronic component 1 to exert its inductance effect.

[0047] In order to avoid mutual conduction between the first end 111 and the second end 112, an insulating medium should be provided between the first end 111 and the second end 112. Optionally, the insulating medium may be air, or an additionally filled insulating material, which may be selected according to actual conditions and is not specifically limited in this embodiment.

[0048] When the insulating medium is an additionally filled insulating material, due to the inconsistency of the shrinkage temperature and rate of the material of the electrode layer 11 and the material of the insulating medium, during the sintering process of the electronic component 1, the insulating medium between the first end 111 and the second end 112 will be subjected to the tensile stress of the electrode layer 11, and the insulating material may be pulled apart and cause crack defects. When the electronic component 1 provided by the first aspect of the embodiment of the present invention is used to fill the insulating medium between the first end 111 and the second end 112 by screen printing, the amount of ink applied to the insulating medium is increased, so that the density of the insulating medium between the first end 111 and the second end 112 is increased, and the structural strength of the insulating medium itself is improved, thereby reducing the occurrence of crack defects caused by the insulating medium being pulled apart during the sintering process, and thus helping to avoid the occurrence of a short circuit between the first end 111 and the second end 112 under high temperature load.

[0049] The increase in the distance between the first end portion 111 and the second end portion 112 in the second direction Y may be achieved in the following manners, which will be described below with examples.

[0050] In the first example, Figure 5 As shown, at least part of the width of the first end 111 is smaller than the width of the main body 110, so that the distance between the first end 111 and the second end 112 in the second direction Y is increased. That is, when the line widths of the main body 110 and the second end 112 remain unchanged, at least part of the line width of the first end 111 facing the second end 112 is narrowed compared to the main body 110. In other words, at least part of one side of the first end 111 is arranged away from the second end 112 in the second direction Y, so that the distance between the narrowed part of the first end 111 and the second end 112 in the second direction Y is increased. In this way, the distance between the first end 111 and the second end 112 in the second direction Y can be increased by adjusting the line width of the first end 111, thereby avoiding the situation where the first end 111 and the second end 112 are connected to each other and short-circuited under a high temperature load environment, and the effective coil area of ​​the electronic component 1 will not be reduced, and the overall DC resistance of the electrode layer 11 will be relatively small.

[0051] In the second example, Figure 6As shown, at least part of the width of the second end 112 is smaller than the width of the main body 110, so that the distance between the first end 111 and the second end 112 in the second direction Y is increased. That is, when the line widths of the main body 110 and the first end 111 remain unchanged, at least part of the line width of the second end 112 facing the first end 111 is narrowed compared to the main body 110. In other words, at least part of one side of the second end 112 is arranged away from the first end 111 in the second direction Y, so that the distance between the narrowed part of the second end 112 and the first end 111 in the second direction Y is increased. In this way, the distance between the first end 111 and the second end 112 in the second direction Y can be increased by adjusting the line width of the second end 112, thereby avoiding the situation where the first end 111 and the second end 112 are connected to each other and short-circuited in a high temperature load environment, and the effective coil area of ​​the electronic component 1 will not be reduced, and the overall DC resistance of the electrode layer 11 will be relatively small.

[0052] In the third example, Figure 7 As shown, at least a portion of the width of the first end 111 is smaller than the width of the main body 110, and at the same time, at least a portion of the width of the second end 112 is smaller than the width of the main body 110, so that the distance between the first end 111 and the second end 112 in the second direction Y is increased, that is, at least a portion of the line width of the first end 111 facing the second end 112 is narrowed compared to the main body 110, and at least a portion of the line width of the second end 112 facing the first end 111 is also narrowed compared to the main body 110. In other words, at least a portion of one side of the first end 111 is disposed away from the second end 112 in the second direction Y, and at the same time, at least a portion of one side of the second end 112 is disposed away from the first end 111 in the second direction Y, so that the distance between the narrowed portion of the first end 111 and the narrowed portion of the second end 112 in the second direction Y is increased. In this way, the distance between the first end 111 and the second end 112 in the second direction Y is increased. However, since the first end 111 and the second end 112 are narrowed relative to the main body 110 at the same time, compared with the first example and the second example, in this way, the distance between the first end 111 and the second end 112 in the second direction Y will be larger, but the overall DC resistance of the electrode layer 11 of the electronic component 1 will be slightly larger.

[0053] In the electrode layer 11, the main body 110, the first end 111 and the second end 112 are usually surrounded to form an annular structure, that is, the inductor region is an annular region, and generally speaking, one of the first end 111 and the second end 112 is usually formed outside the inductor region, and the other is arranged inside, that is, when the first end 111 and the second end 112 are arranged facing each other, one of them is located outside the other.

[0054] The following description will be made by taking an example where the first end portion 111 is disposed outside and the second end portion 112 is disposed inside.

[0055] In some embodiments, when the width of at least a portion of the first end portion 111 is smaller than the first width, it may include that the entire width of the first end portion 111 is smaller than the first width, or that a portion of the first end portion 111 has a width smaller than the first width, and the width of another portion may be the same as the first width.

[0056] Exemplarily, when the overall width of the first end portion 111 is smaller than the first width, the surface of the first end portion 111 that forms a gap with the second end portion 112 may be a slope, and the slope may be inclined from an end where the first end portion 111 and the main body 110 are connected to an end of the first end portion 111 that is away from the main body 110, so that the first end portion 111 gradually moves away from the second end portion 112 in the second direction Y to increase the distance between the first end portion 111 and the second end portion 112.

[0057] See also Figure 8 When a portion of the first end 111 has a width smaller than the first width, the first end 111 may have a first portion 111a, the first portion 111a having a first surface 1110 spaced apart from the second end 112, the first surface 1110 may be a plane, and the first surface 1110 is disposed away from the second end 112 in the second direction Y, so that the width of the first portion 111a in its line width direction is smaller than the first width. In this way, by disposing the first surface 1110 away from the second end 112 in the second direction Y, the width of the first portion 111a in the line width direction is narrowed, and the value of the narrowed width is the same as the value of the increase in the distance between the first end 111 and the second end 112 in the second direction Y. In addition, the first surface 1110 is a plane, which can make the overall width of the first portion 111a uniform, so that the heat generation of the first portion 111a is more uniform, so that the working state of the electronic component 1 is more stable.

[0058] Optionally, in the first direction X, the length of the second end 112 is less than the length of the first end 111, that is, the length of the first end 111 is greater than the length of the second end 112, and the length of the first portion 111a matches the length of the second end 112. In this way, the portion where the first end 111 and the second end 112 face each other can be the portion with a narrowed width on the first end 111, and the portion with a narrowed width on the first end 111 can be used to the maximum extent, and the length of the portion with a narrowed width on the first end 111 can be reduced, thereby reducing the impact on the overall DC resistance of the electrode layer 11.

[0059] On the basis of the above, the first end portion 111 further includes a second portion 111b, and the second portion 111b is connected between the first portion 111a and the main body 110. In the first direction X, at least a portion of the second portion 111b close to the second end portion 112 is configured as a transition surface 1111, and the distance between the transition surface 1111 and the second end portion 112 in the second direction Y gradually increases along the direction from the second portion 111b to the first portion 111a. In this way, by configuring at least a portion of the second portion 111b close to the second end portion 112 as the transition surface 1111, while achieving the narrowing of the width of the first portion 111a relative to the second portion 111b, it is possible to avoid a large stress concentration at the connection between the first portion 111a and the second portion 111b, which affects the structural strength of the electrode layer 11 itself, and at the same time, the effective coil area of ​​the electrode layer 11 can be increased.

[0060] In some embodiments, a portion of the second portion 111b close to the second end portion 112 is configured as a transition surface 1111, and the width of the remaining portion of the second portion 111b is equal to the width of the main body 110. In this way, the width of the portion of the second portion 111b where the transition surface 1111 is not provided is equal to the width of the main body 110, which can minimize the effect of the first portion 111a and the transition surface 1111 on the overall width of the first end portion 111, so that the overall DC resistance of the first end portion 111 will not be too large, thereby avoiding the situation where severe local heating occurs.

[0061] In some embodiments, the first width is D1, and the length of the portion of the second portion 111b having the transition surface 1111 in the first direction X is L1, satisfying the relationship: 0.5D1≤L1≤1.5D1. On the one hand, the transition surface 1111 can have a sufficient length in the first direction X, avoiding a large stress concentration at the connection between the first portion 111a and the second portion 111b, which affects the structural strength of the electrode layer 11 itself, and at the same time can increase the effective coil area of ​​the electrode layer 11. On the other hand, the length of the transition surface 1111 in the first direction X can be made not too large, avoiding a large influence on the overall width of the first end portion 111 due to the excessive length of the transition surface 1111 in the first direction X, thereby causing the DC resistance of the first end portion 111 to be too large.

[0062] In some embodiments, along the second direction Y, the second end 112 has a second surface 1120 and a third surface 1121, the second surface 1120 is a surface close to the first end 111, the second surface 1120 is a plane, and the third surface 1121 is arranged close to the second surface 1120 along the second direction, so that the width of the second end 112 is smaller than the first width. That is, the width of the second end 112 away from the first end 111 is narrowed. In this way, the effective coil area of ​​the electrode layer 11 can be increased to a certain extent without making the DC resistance of the second end 112 too large.

[0063] In some embodiments, the first surface 1110 and the second surface 1120 are arranged in parallel and are perpendicular to the second direction Y. In this way, the distances between the first surface 1110 and the second surface 1120 at various positions corresponding to the second direction Y can be equal, that is, the distances between the first portion 111a of the first end portion 111 and the second end portion 112 in the second direction Y are equidistant, and while ensuring that there is a sufficient safety distance between the first end portion 111 and the second end portion 112, the influence on the overall DC resistance of the electrode layer 11 can be further reduced.

[0064] In other embodiments, the first surface 1110 and the second surface 1120 may also be arranged to intersect each other, that is, the first surface 1110 and the second surface 1120 may be arranged at an angle.

[0065] Taking into account that the width setting of the main body 110, the first end 111, and the second end 112 will affect the effective coil area and the overall DC resistance of the electrode layer 11, based on this, the present application takes into account the width and length of the main body 110, the first end 111, and the second end 112, which will be explained separately below.

[0066] Optionally, the first width is D1, and the width of the first end portion 111 is D2, satisfying the relationship: 0.6D1≤D2≤0.9D1. For example, D2 may be equal to 0.6D1, 0.7D1, 0.8D1 or 0.9D1.

[0067] Optionally, the first width is D1, and the width of the second end portion 112 is D3, satisfying the relationship: 0.6D1≤D3≤0.9D1. For example, D3 may be equal to 0.6D1, 0.7D1, 0.8D1 or 0.9D1.

[0068] In this way, on the one hand, the width of the first end 111 and the second end 112 can be prevented from being too small, thereby preventing the local DC resistance of the first end 111 and the second end 112 from being too large due to the width of the first end 111 and the second end 112 being too small, thereby preventing the occurrence of serious local heating of the first end 111 and the second end 112. On the other hand, the width of the first end 111 and the second end 112 can be prevented from being too large, thereby ensuring that the distance between the first end 111 and the second end 112 in the second direction Y is sufficiently increased, thereby preventing the first end 111 and the second end 112 from being electrically connected to each other and causing a short circuit.

[0069] Optionally, the first width is D1, and in the second direction Y, the distance between the first end 111 and the second end 112 is H1, satisfying the relationship: 0.3D1≤H1≤0.7D1. Exemplarily, H1 may be equal to 0.3D1, 0.4D1, 0.5D1, 0.6D1 or 0.7D1, etc.

[0070] In this way, on the one hand, the distance between the first end 111 and the second end 112 can be made larger, so as to avoid the situation that the first end 111 and the second end 112 are connected to each other and short-circuited. On the other hand, the distance between the first end 111 and the second end 112 can be made not too large, so as to avoid excessively affecting the effective coil area of ​​the electronic component 1, and to avoid excessively reducing the width of the first end 111 and the second end 112, so as to avoid excessively increasing the local DC resistance of the first end 111 and the second end 112.

[0071] Optionally, the first width is D1, the width of the first end 111 is D2, the width of the second end 112 is D3, and in the second direction Y, the distance between the first end 111 and the second end 112 is H1, satisfying the relationship: 1.5D1≤D2+D3+H1≤2.5D1. Exemplarily, D2+D3+H1 may be equal to 1.5D1, 1.7D1, 2D1, 2.3D1 or 2.5D1, etc., and the values ​​of D2, D3, and H1 may be designed according to actual conditions. For example, when D2+D3+H1 is equal to 2D1, D2 may be equal to 0.8D1, D3 may be equal to 0.8D1, and H1 may be equal to 0.4D1.

[0072] That is, the relationship is satisfied: 0.5D1≤D2+D3+H1-D1≤1.5D1, D2+D3+H1-D1 is a relevant parameter that affects the effective coil area of ​​the electrode layer 11, and the larger the value of D2+D3+H1-D1 is, the smaller the effective coil area of ​​the electrode layer 11 is, and the smaller the value of D2+D3+H1-D1 is, the larger the effective coil area of ​​the electrode layer 11 is. By making 0.5D1≤D2+D3+H1-D1≤1.5D1. Therefore, under the above relationship, on the one hand, the value of D2+D3+H1-D1 can be made smaller, thereby reducing the impact on the effective coil area of ​​the electrode layer 11. On the one hand, it can also ensure that the value of D2+D3+H1-D1 will not be too small, thereby preventing the width of the first end 111 and the width of the second end 112 from being too small, thereby preventing the local DC resistance from being too large, and preventing the distance between the first end 111 and the second end 112 from being too small, thereby preventing the first end 111 and the second end 112 from being electrically connected to each other and causing a short circuit.

[0073] In some embodiments, the first width is D1, and in the first direction X, the length of the portion where the first end 111 and the second end 112 are opposite to each other is L2, satisfying the relationship: 1.8D1≤L2≤2.2D1. Since the first end 111 and the second end 112 are structures for mutual conduction between different electrode layers 11, when the relationship 1.8D1≤L2≤2.2D1 is satisfied, the first end 111 and the second end 112 can have an area to ensure stable electrical connection with the first end 111 and the second end 112 of other electrode layers 11. On the other hand, since the length of the second end 112 is another relevant parameter that affects the effective coil area of ​​the electrode layer 11, the length of the second end 112 can be made not too large, thereby reducing the impact on the effective coil area of ​​the electrode layer 11. Exemplarily, L2 can be equal to 1.8D1, 2D1 or 2.2D1, etc.

[0074] See also Fig. 9Optionally, the material of the dielectric layer 10 may be a ferrite material or a ceramic material, etc., which may be selected according to actual conditions and is not specifically limited in this embodiment.

[0075] Optionally, the number of the dielectric layer 10 and the electrode layer 11 may be one or more, which may be selected according to actual conditions and is not specifically limited in this embodiment.

[0076] Optionally, the dielectric layer 10 and the electrode layer 11 of this embodiment can be used as the middle layer of the electronic component 1, the electrode layer 11 is the middle inner electrode layer, and the electronic component 1 also includes upper and lower layers with outer electrode layers 12, and the outer electrode layer 12 is used to connect with other electronic components.

[0077] See also Fig.10 , Fig.10 The dotted line in the figure indicates that the electronic component 1 is located inside the terminal device 2. A second aspect of an embodiment of the present invention provides a terminal device 2, and the terminal device 2 includes the electronic component 1 according to the first aspect of the above embodiment.

[0078] The terminal device 2 provided in the second aspect of the embodiment of the present invention adopts the electronic component 1 of the first aspect of the embodiment of the present invention, so that a sufficient safety distance can be provided between the first end 111 and the second end 112. In a high temperature load environment, when silver migration occurs between the first end 111 and the second end 112, the short circuit caused by mutual conduction between the first end 111 and the second end 112 can be avoided. At the same time, the effective coil area of ​​the electronic component 1 will not be reduced, and the impact on the overall DC resistance of the electrode layer 11 is relatively small, thereby avoiding the occurrence of severe heating of the electrode layer 11.

[0079] Optionally, the terminal device 2 includes but is not limited to smart phones, wearable devices, drones, electric vehicles, electric cleaning tools, energy storage products, electric vehicles, electric bicycles, electric navigation tools, etc. The specific selection can be made according to actual conditions and is not specifically limited in this embodiment.

[0080] The electronic components and terminal devices disclosed in the embodiments of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the electronic components and terminal devices of the present invention and their core ideas. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An electronic component, characterized in that: include: dielectric layer; as well as, An electrode layer, the electrode layer is arranged on the dielectric layer, the electrode layer comprises a main body, a first end and a second end, the first end and the second end are respectively connected to two ends of the main body to jointly enclose an inductor region, the first end and the second end are both extended along a first direction, and are arranged facing each other and spaced apart in a second direction; The width of the main body in the line width direction is a first width, the width of at least part of the first end in the line width direction is smaller than the first width, and / or the width of at least part of the second end in the line width direction is smaller than the first width, so that the distance between the first end and the second end in the second direction is increased; The first width is D1, the width of the first end is D2, satisfying the relationship: 0.6D1≤D2≤0.9D1, and / or the width of the second end is D3, satisfying the relationship: 0.6D1≤D3≤0.9D1, and the first direction is perpendicular to the second direction.

2. The electronic component according to claim 1, characterized in that When the width of at least part of the first end portion is smaller than the first width, the first end portion has a first portion, the first portion has a first surface spaced apart from the second end portion, the first surface is a plane, and the first surface is disposed away from the second end portion in the second direction so that the width of the first portion in its line width direction is smaller than the first width.

3. The electronic component according to claim 2, characterized in that In the first direction, the length of the second end portion is smaller than the length of the first end portion, and the length of the first portion is adapted to the length of the second end portion.

4. The electronic component according to claim 3, characterized in that The first end also includes a second part, which is connected between the first part and the main body. In the first direction, at least a portion of the second part on one side close to the second end is configured as a transition surface, and along the direction from the second part to the first part, the distance between the transition surface and the second end in the second direction gradually increases.

5. The electronic component according to claim 4, characterized in that The first width is D1, and in the first direction, the length of the portion of the second portion having the transition surface is L1, satisfying the relationship: 0.5D1≤L1≤1.5D1, and / or, In the first direction, a length of a portion of the first end portion that is opposite to the second end portion is L2, satisfying the relationship: 1.8D1≤L2≤2.2D1.

6. The electronic component according to any one of claims 1 to 4, characterized in that: The first width is D1, and in the second direction, the distance between the first end and the second end is H1, satisfying the relationship: 0.3D1≤H1≤0.7D1.

7. The electronic component according to any one of claims 1 to 4, characterized in that: The first width is D1, the width of the first end is D2, the width of the second end is D3, and in the second direction, the distance between the first end and the second end is H1, satisfying the relationship: 1.5D1≤D2+D3+H1≤2.5D1.

8. The electronic component according to any one of claims 1 to 5, characterized in that: Along the second direction, the second end has a second surface and a third surface, the second surface is a surface close to the first end, and the second surface is a plane; The third surface is disposed close to the second surface along the second direction, so that a width of the second end portion is smaller than the first width.

9. A terminal device, characterized in that: The terminal device comprises the electronic component according to any one of claims 1-8.

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